55500305243 has 16 divisors (see below), whose sum is σ = 58769293440. Its totient is φ = 52266902400.

The previous prime is 55500305233. The next prime is 55500305257. The reversal of 55500305243 is 34250300555.

It is not a de Polignac number, because 55500305243 - 2¹² = 55500301147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55500305233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2603996 + ... + 2625222.

It is an arithmetic number, because the mean of its divisors is an integer number (3673080840).

Almost surely, 2^55500305243 is an apocalyptic number.

55500305243 is a deficient number, since it is larger than the sum of its proper divisors (3268988197).

55500305243 is a wasteful number, since it uses less digits than its factorization.

55500305243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22058.

The product of its (nonzero) digits is 45000, while the sum is 32.

Adding to 55500305243 its reverse (34250300555), we get a palindrome (89750605798).

The spelling of 55500305243 in words is "fifty-five billion, five hundred million, three hundred five thousand, two hundred forty-three".